Add digits.c

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digits.c

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+#include <stdio.h>
+
+int main() {
+
+	// declaring and defining the 14 digit numbers
+	int digits[] = {3, 4, 2, 1, 5, 6, 8, 3, 1, 5, 1, 5, 6, 5};
+
+	// declaring the variable for the total of the first, third, fifth elements and so on...
+	int sum_odd;
+
+	printf("=====================================\n");
+	printf("First set of digits\n");
+	printf("=====================================\n");
+	// loop through the first, third, fifth element and so on
+	for(size_t i = 0; i < (sizeof(digits) / sizeof(digits[0])); i += 2) {
+		// multiplying the value of each element by 2
+		digits[i] = digits[i] * 2; 
+		printf("Element %d: %d\n", ((int)i + 1), digits[i]);	
+
+		// adding the value of the current element to the old sum_even value
+		sum_odd += digits[i];
+	}
+
+	// declaring the variable for second, forth, sixth elements and so on...
+	int sum_even;
+
+	printf("\n");
+	printf("=====================================\n");
+	printf("Second set of digits\n");
+	printf("=====================================\n");
+	// loop through the second, forth, sixth digits and so on
+	for(size_t j = 1; j < (sizeof(digits) / sizeof(digits[0])); j += 2) {
+		// multiplying the value of each element by 2
+		digits[j] = digits[j] * 2; 
+		printf("Element %d: %d\n", ((int)j + 1), digits[j]);	
+
+		// adding the value of the current element to the old sum_even value
+		sum_even += digits[j];
+	}
+
+	// add the sum of sum_odd and sum_even together
+	int total = sum_odd + sum_even;
+	// print out the value
+	printf("\n");
+	printf("=====================================\n");
+	printf("Total: %d\n", total);
+	printf("=====================================\n");
+	
+	return 0;
+}